cossy very close to starting - MBClub UK

190ian · 02-06-2007, 06:33 PM

After spending the odd few hours here and there trying to get my cossy started after changing a sprocket which had worn the teeth down to almost nothing,
putting the head back on,
camshafts back and lined up,
timing also set up
Had to change starter motor ,(was not spinning quick enough)
Try to start it nothing,

checked leads plugs dizi all fine and working,
changed cold start valve, tryed again nothing.

Checked fuel drained the tank changed fuel fillter put new fuel in tryed to start got more of a responce to new fuel

She is very close to starting up but dont no what to try next, can anyone help

grober · 02-06-2007, 08:33 PM

Distributer timing 180 degrees out??

Mercedes cozy · 03-06-2007, 06:51 AM

Quote:

Originally Posted by grober

Distributer timing 180 degrees out??

Yes, I would agree with you grober as I had the exact same problem.

Dieselman · 03-06-2007, 03:31 PM

Check the power of the spark with a flash test device and as grober said the correct timing. After that spray a small amount of petrol into the intake as it's being cranked. If it's fuel related this will make it run.

190ian · 05-06-2007, 06:06 PM

After more checking found out i am only getting fuel into piston no 1 and none into the other 3 (fuel distributor blocked my be)

Dieselman · 05-06-2007, 06:10 PM

Quote:

Originally Posted by 190ian

After more checking found out i am only getting fuel into piston no 1 and none into the other 3 (fuel distributor blocked my be)

Probably.
What type of fuel injection does it have. If mechanical then it will be the needle valve is blocked due to standing.
Sometimes a tap with a soft mallet whilst pressing the diapragm works.

If you need to remove it fill it with diesel as that will ungum the works.

Mercedes cozy · 05-06-2007, 08:45 PM

Quote:

Originally Posted by 190ian

After more checking found out i am only getting fuel into piston no 1 and none into the other 3 (fuel distributor blocked my be)

Have you checked your distributor timing?

Dieselman · 06-06-2007, 06:26 PM

He meant fuel distributor. There is no timing it delivers constanty to all injectors.

Mercedes cozy · 06-06-2007, 09:49 PM

Quote:

Originally Posted by Dieselman

He meant fuel distributor. There is no timing it delivers constanty to all injectors.

What I meant was, has the distributor timing been checked as well.

190ian · 09-06-2007, 08:30 AM

Sorted the fuel problem all working as it should now.
Turned dizi 180degrees still wont start.
Timing is set correctly.
Can the crank shaft censor stop it starting.

grober · 09-06-2007, 10:10 AM

Quote:

Originally Posted by 190ian

Sorted the fuel problem all working as it should now.
Turned dizi 180degrees still wont start.
Timing is set correctly.
Can the crank shaft censor stop it starting.

If the sensor isnt working yes. or possibly the ignition unit it triggers? are you getting sparks?
I assume you mean you lifted the distributer body up to dis-engage the drive and turned the rotor arm thro 180 degrees and then replaced it yes? sorry if this stating the obvious.

190ian · 09-06-2007, 11:23 AM

Yeah i did lift the distributor and turned it 180degrees
and i am getting sparks, if im not getting the full voltage for the spark can this affect it as well.

grober · 09-06-2007, 12:00 PM

If you spray some Bradex easi-start down the inlet it should fire for a brief period weak spark or not if everything is setup correctly. Not something I would advocate normally but in extreme non start situations might help. Sounds as if you have "hit the wall" as the marathon runners would say. I can offer advice on this forum but without being there its difficult. Maybe time for a "fresh pair of eyes" Sometimes they will see something thats staring you in the face but you just dont see it for looking. Otherwise take a step back and then work thro all the possibilities methodically. Don't assume anything -check it. Check as much as you can visually is everything moving as it should. It sounds trivial but sort of thing I mean is ---can you actually see the rotor arm rotate with the distributer cap off. things like that. One thing I would deffo change is the rotor arm and possibly the cap. They may look OK but any leakage to earth will drastically effect things.

**Ian B Walker** · 09-06-2007, 07:53 PM

Have you got a full 12 volts going into the coil?

190ian · 09-06-2007, 07:54 PM

Thanks for your help i will change the dizi cap and arm.
And i will get someone else to look at it, thanks again, i will keep you posted on what happens.

09-06-2007, 12:00 PM	#13
grober Hardcore MB Enthusiast Join Date: Jun 2003 Location: Perth, Scotland Car: W204 C200CDI Estate Posts: 14,460	If you spray some Bradex easi-start down the inlet it should fire for a brief period weak spark or not if everything is setup correctly. Not something I would advocate normally but in extreme non start situations might help. Sounds as if you have "hit the wall" as the marathon runners would say. I can offer advice on this forum but without being there its difficult. Maybe time for a "fresh pair of eyes" Sometimes they will see something thats staring you in the face but you just dont see it for looking. Otherwise take a step back and then work thro all the possibilities methodically. Don't assume anything -check it. Check as much as you can visually is everything moving as it should. It sounds trivial but sort of thing I mean is ---can you actually see the rotor arm rotate with the distributer cap off. things like that. One thing I would deffo change is the rotor arm and possibly the cap. They may look OK but any leakage to earth will drastically effect things. __________________ Cheers Graeme W204 C200CDI Estate

09-06-2007, 07:53 PM	#14
Ian B Walker Authorised Forum Sponsor Join Date: Jun 2003 Location: Kirkham Car: 300-24, saloon and coupe, E300 24 valve diesel estate Posts: 7,708	Have you got a full 12 volts going into the coil? __________________ TMS Servicing: I am listed here on MBClub please click to see services and discounts available.

02-06-2007, 08:33 PM	#2
grober Hardcore MB Enthusiast Join Date: Jun 2003 Location: Perth, Scotland Car: W204 C200CDI Estate Posts: 14,460	Distributer timing 180 degrees out??

03-06-2007, 03:31 PM	#4
Dieselman Hardcore MB Enthusiast Join Date: Jul 2003 Car: Peugeot 403 Convertible Posts: 28,838	Check the power of the spark with a flash test device and as grober said the correct timing. After that spray a small amount of petrol into the intake as it's being cranked. If it's fuel related this will make it run.

05-06-2007, 06:06 PM	#5
190ian Hardcore MB Enthusiast Threadstarter Join Date: Dec 2005 Location: ESSEX Car: 190e 1.8 (190e 2.3 16v) Posts: 215	After more checking found out i am only getting fuel into piston no 1 and none into the other 3 (fuel distributor blocked my be)

06-06-2007, 06:26 PM	#8
Dieselman Hardcore MB Enthusiast Join Date: Jul 2003 Car: Peugeot 403 Convertible Posts: 28,838	He meant fuel distributor. There is no timing it delivers constanty to all injectors.

09-06-2007, 08:30 AM	#10
190ian Hardcore MB Enthusiast Threadstarter Join Date: Dec 2005 Location: ESSEX Car: 190e 1.8 (190e 2.3 16v) Posts: 215	Sorted the fuel problem all working as it should now. Turned dizi 180degrees still wont start. Timing is set correctly. Can the crank shaft censor stop it starting.

09-06-2007, 11:23 AM	#12
190ian Hardcore MB Enthusiast Threadstarter Join Date: Dec 2005 Location: ESSEX Car: 190e 1.8 (190e 2.3 16v) Posts: 215	Yeah i did lift the distributor and turned it 180degrees and i am getting sparks, if im not getting the full voltage for the spark can this affect it as well.

09-06-2007, 07:54 PM	#15
190ian Hardcore MB Enthusiast Threadstarter Join Date: Dec 2005 Location: ESSEX Car: 190e 1.8 (190e 2.3 16v) Posts: 215	Thanks for your help i will change the dizi cap and arm. And i will get someone else to look at it, thanks again, i will keep you posted on what happens.

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